diff --git a/drivers/bluetooth/btmrvl_drv.h b/drivers/bluetooth/btmrvl_drv.h
index 199ff49..dc79f88 100644
--- a/drivers/bluetooth/btmrvl_drv.h
+++ b/drivers/bluetooth/btmrvl_drv.h
@@ -142,7 +142,7 @@
 bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
 
-int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
+int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd);
 int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv);
 int btmrvl_enable_ps(struct btmrvl_private *priv);
 int btmrvl_prepare_command(struct btmrvl_private *priv);